Robtex

Up: 64.100.0.0/15
Can't show all results, try to descend to a more specific CIDR
Down left: 64.100.0.0/17
Down right: 64.100.128.0/17
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.100.1.196	A	tet-pov-rtp1.cpoc.co
64.100.1.197	A	wsstet-pov-rtp1.cpoc.co
64.100.8.145	A	technicaleducation.cisco.com
64.100.8.147	A	htdlab.cisco.com
64.100.8.148	A+PTR	hlab-technicaleducation-rtp.cisco.com
64.100.8.148	A	hlab-technicaleducation.cisco.com
64.100.10.97	A	cxdemo.net
64.100.10.97	A	www.cxdemo.net
64.100.12.22	A+PTR	dcloud-rtp-anyconnect.cisco.com
64.100.12.23	A+PTR	dcloud-rtp-web-1.cisco.com
64.100.12.28	A	dcloud-rtp-web-4.cisco.com
64.100.12.40	A	dcloud-rtp-cms.cisco.com
64.100.14.31	A	dns1.reqdemo.com
64.100.14.32	A	dns2.reqdemo.com
64.100.14.36	A	mail.reqdemo.com
64.100.15.80	A	trn5-services-websandbox.cisco.com
64.100.15.161	A	selfservelabs.cisco.com
64.100.16.2	A+PTR	rtp7-sdfb-dci02n-gw1-vla10.cisco.com
64.100.16.158	A+PTR	rtp5-34n-dci01s-ssw2bridge-vl270-vl670.cisco.com
64.100.17.2	A	rtp5-34m-dci01s-gw1-vla271.cisco.com
64.100.17.89	A+PTR	wwwin-dv1coe-csm.cisco.com
64.100.18.2	A+PTR	rtp7-sdfb-dci02n-gw1-vla280.cisco.com
64.100.18.70	A	rtp-lds-050.cisco.com
64.100.18.71	A	rtp-lds-051.cisco.com
64.100.18.87	A	rtp-lds-067.cisco.com
64.100.21.2	A	rtp7-sdfb-dci02n-gw1-vla210.cisco.com
64.100.21.4	A	clubhouse-4.cisco.com
64.100.21.11	A	clubhouse.cisco.com
64.100.21.11	A	clubhouse-2.cisco.com
64.100.24.2	A+PTR	rtp7-sdfb-dci02n-gw1-vla240.cisco.com
64.100.24.44	A+PTR	ucit-am302-rtp.cisco.com
64.100.24.44	A	ucit.cisco.com
64.100.25.6	A	mp-rtp-c5-asv2.cisco.com
64.100.25.39	A	ucm-am842-rtp.cisco.com
64.100.25.49	A	icm-rtp-pg10b.cisco.com
64.100.25.97	A	dl140g3-qc.cisco.com
64.100.27.2	A+PTR	rtp5-34m-dci01s-gw1-vla111.cisco.com
64.100.29.21	A+PTR	rtp-ca-schedule.cisco.com
64.100.35.35	A+PTR	wwwin-kickstart-rtp.cisco.com
64.100.36.151	A+PTR	icm-rtp-lgrb.cisco.com
64.100.36.153	A+PTR	icm-rtp-pg10a.cisco.com
64.100.36.170	A+PTR	ucx-am301-rtp.cisco.com
64.100.36.170	A	ucx-am3-gss.cisco.com
64.100.37.55	A+PTR	dsxdev-rtp5.cisco.com
64.100.37.56	A+PTR	dsxdev-update-rtp5.cisco.com
64.100.37.57	A+PTR	dsxdev-oam-rtp5.cisco.com
64.100.37.58	A+PTR	dsxdev-update-oam-rtp5.cisco.com
64.100.38.4	A+PTR	doc-srv-001-d-old.cisco.com
64.100.38.13	A	gpss-rtp-001-p-old.cisco.com
64.100.38.27	A	lnxtst-001-d.cisco.com
64.100.38.28	A	nqs-rtp-h02-p.cisco.com
64.100.41.5	A	rtp12-dt-gw1-nam2.cisco.com
64.100.41.47	A	dhcp-64-100-41-47.cisco.com
64.100.41.50	A	dhcp-64-100-41-50.cisco.com
64.100.41.51	A	dhcp-64-100-41-51.cisco.com
64.100.48.203	A+PTR	isertp-prd-05.cisco.com
64.100.50.3	A+PTR	rtp1-hda2-dcm01n-gw2-vla355.cisco.com
64.100.50.6	A	qat-stg-reserve.cisco.com
64.100.50.16	A	rtp5-web-16.cisco.com
64.100.50.26	A	rtp5-web-26.cisco.com
64.100.51.136	A	pso-tools.cisco.com
64.100.51.136	A	app.cisco.com
64.100.52.141	A+PTR	lrg-rtp-026.cisco.com
64.100.53.28	A	scn-rtp-009.cisco.com
64.100.53.29	A	scn-rtp-010.cisco.com
64.100.53.41	A	decomm-smb-dev-01.cisco.com
64.100.53.42	A	decomm-smb-stg-01.cisco.com
64.100.53.90	A	lrg-rtp-026.cisco.com
64.100.53.91	A	lrg-rtp-026.cisco.com
64.100.53.92	A	lrg-rtp-026.cisco.com
64.100.53.93	A	lrg-rtp-026.cisco.com
64.100.53.94	A	lrg-rtp-026.cisco.com
64.100.53.95	A	lrg-rtp-026.cisco.com
64.100.53.96	A	lrg-rtp-026.cisco.com
64.100.53.97	A	lrg-rtp-026.cisco.com
64.100.53.98	A	lrg-rtp-026.cisco.com
64.100.53.99	A	lrg-rtp-026.cisco.com
64.100.54.51	A+PTR	ap-poc-app1.cisco.com
64.100.58.121	A+PTR	rtp-df-57.cisco.com
64.100.59.101	A+PTR	cqe-dmz.cisco.com
64.100.71.1	A+PTR	dhcp-64-100-71-1.cisco.com
64.100.71.6	A	dhcp-64-100-71-6.cisco.com
64.100.71.7	A	dhcp-64-100-71-7.cisco.com
64.100.71.11	A	dhcp-64-100-71-11.cisco.com
64.100.85.171	A+PTR	dhcp-64-100-85-171.cisco.com
64.100.88.70	A+PTR	dhcp-64-100-88-70.cisco.com
64.100.94.11	A	printer-lwr05-64-100-94-11.cisco.com
64.100.94.14	A	printer-lwr05-64-100-94-14.cisco.com
64.100.94.24	A	64-100-94-24-kmpg-temp.cisco.com
64.100.94.29	A	dhcp-64-100-94-29.cisco.com
64.100.95.21	A+PTR	dhcp-64-100-95-21.cisco.com
64.100.113.1	A+PTR	dhcp-64-100-113-1.cisco.com
64.100.113.7	A	dhcp-64-100-113-7.cisco.com
64.100.113.16	A	dhcp-64-100-113-16.cisco.com
64.100.113.22	A	dhcp-64-100-113-22.cisco.com
64.100.121.21	A+PTR	dhcp-64-100-121-21.cisco.com
64.100.121.37	A+PTR	dhcp-64-100-121-37.cisco.com
64.100.121.149	A+PTR	dhcp-64-100-121-149.cisco.com
64.100.122.90	A	dhcp-64-100-122-90.cisco.com
64.100.144.8	A+PTR	lwr02-00-acns-ce1.cisco.com
64.100.144.9	A	lwr05-00-acns-ce1.cisco.com
64.100.177.161	A	hsrp-64-100-177-161.cisco.com
64.100.177.180	A	dhcp-64-100-177-180.cisco.com
64.100.177.181	A	dhcp-64-100-177-181.cisco.com
64.100.177.182	A	dhcp-64-100-177-182.cisco.com
64.100.181.147	A+PTR	jrosa-ppc.cisco.com
64.100.181.158	A+PTR	sjn2-security3.cisco.com
64.100.197.52	A	vip-10-31-194-40-cisco.com
64.100.198.27	A	kajiki.cisco.com
64.100.198.29	A	knv-ts1.cisco.com
64.100.198.51	A	altostratus.cisco.com
64.100.198.55	A	francium.cisco.com
64.100.199.33	A	rtp1-mda2-cibb-wan-gw1-loo100.cisco.com
64.100.201.100	A	010e3139392e31362e3135362e3136390c40747769747465722e636f6d10.746875626261726440646333382e6361.lbl8.mailshell.net
64.100.201.100	A	010e3139392e31362e3135362e3135340c40747769747465722e636f6d1d.6b646f6d626f76696373406e61747572616c666163746f72732e636f6d.lbl8.mailshell.net
64.100.201.100	A	010e3230392e38352e3232302e3136390a40676d61696c2e636f6d157062.65636b406576616e736f6e6c696e652e636f6d.lbl8.mailshell.net
64.100.204.131	A+PTR	cb14-useast-cbridge-vpn-fw1.cisco.com
64.100.220.8	A+PTR	ns1-asig.cisco.com
64.100.220.10	A+PTR	namako.cisco.com
64.100.220.11	A+PTR	saucy.cisco.com
64.100.220.12	A+PTR	elmers.cisco.com